Introduction The preventive care is an important task of the health of children and adolescents. Objective To analyze the parents’ opinion concerning the preventive health care for infants and children up to 6 years in the primary health care system in Poland. Subjects and methods Data from the survey conducted among parents (n = 424) using the preventive care for their children in 145 randomly selected well-child clinics were analysed. Results Over 90% of parents did not have the difficulties with access to well-child visits and vaccinations. Almost all of them appreciated the preventive services provided to their children by doctors and nurses. More than 70% of parents asked about critical comments concerning preventive services, had no comments. Others reported problems with the availability of specialistic care, organization of office visits and bad facilities space infrastructure. Conclusions 1. Parents of infants and children up to 6 years utilizing preventive care in primary health care system highly (mean 4.4 p. in scale 1–5 p.) scored delivered services. 2. According to great majority of parents the preventive care visits content and the access to services met their expectations.